FIX: pass filePath argument when downloading proxy
Merge pull request #1393 from graciani/bug_fix_v6r7

FIX (v6r8): pass filePath argument when downloading proxy
v6r7p21
CHANGE: InputDataAgent treats only the right transformations

Until now, the InputDataAgent was treating ALL the transformations,
even those for which it makes no sense (Extendable ones). Now treat all
but the extendables. Also leave the possibility to set explicitly what
transformations to consider.
CHANGE: TSAgent: Make some methods more public for easy overload

Needed when willing to do strange things with the input files: I want to
indicate in the LFN the starting event number (/vo/something/file:3445),
so I need to be able to change the getDataReplicas method as well as the
getDataReplicasRM (to strip the :XXX).
FIX: Too many public things now

As the replica cache things are very very private, it's hard to overload
the getDataReplicas. Will overload only the getDataReplicasRM that use
only semi private things
FIX: mend the 'method'

Fix the number of _
Merge pull request #1405 from sposs/TSchanges

CHANGE: InputDataAgent treats only the right transformations
Merge pull request #1407 from sposs/TSAgentUpdate

CHANGE: TSAgent: Make some methods more public for easy overload
v6r7p22
Conflicts resolved after merging with rel-v6r7
v6r8p5 notes
Merge remote-tracking branch 'upstream/rel-v6r8' into rel-v6r8